Bar-support and spacer for concrete-reinforcements.



H. H. LAMPERT. BAR SUPPORT AND SPACER FOR CONCRETE REINFORCEMENTS.

APP\LICA'|'ION FILED NOV. 17. I917 1 61,247 Patented Apr. 2, 1918.

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HENRY- H. LAMPERT, OF CHICAGO, ILLINOIS.

BAR'SUPPORT AND SPACER FOR CONCRETE-REINFORCEMENTS.

Specification of Letters Patent.

Patented Apr. 2, 1915.

Application filed November 17, 1917. Serial No. 202,439.

" and a resident of Chicago, county of Cook,

and State of Illinois, haveinvented certain new and useful Improvements in Bar-Supports and Spacers for Concrete-Reinforce ments, of which the following is a specification.

The main objects of this invention are to provide an improved construction and arrangement of bar supporting devices for use in concrete reinforcements whereby a'plurality of bar supportin and clamping means are connected toget ier in spaced relation so that they maybe quickly and conveniently placed on the falsework in properly alined positions to receive the bars preparatory to pouring the concrete; and to provide an improved -manner of securing together the separately formed bar clamping means and spacing means.

An illustrative embodiment of this invention is shown in the accompanying drawings, inwhich 1 Figure 1 is a perspective view of a portion of a bar spacing and supporting devlce constructed in accordance with this invention,

the end of a bar being shown in dotted outline on one of the clamping devices.

Fig. 2 is a fragmentary view of a modified form of spacing means.

Fig. 3 is a perspective view of a slightly modified form of bar support and a portion of the spacing means. I

Fig. 4c is a perspective view of one of the supporting devices with the fingers bent over a. bar.

In arranging reinforcing bars for concrete construction it is desirable to have the supports uniformly spaced apart transversely of the length of the bars and alined longitudinally thereof. When the supports are separately placed on the falsework, it is neces-.

sary to mark oif the position for each on the falsework and handle each one individually. This involves considerable time, and each support must be secured to the falsework or else great care exercised in order to prevent them from becoming disturbed be fore the bars are laid. If, however, the sup ports are combined with a suitable spacing means whereby they are spaced apart in series or groups, they may be very quickly arranged onthe falsework, and only one or two fastening means are required to secure a plurality of clamping means in their formed and afterward assembled with the clamping means located at points along the length of the strip.

The spacing and supporting strip 1 is in the form of acomp'aratively narrow strip of wrought metal, straight from end to end and provided with notches or recesses 3 extending inwardly from the opposite edges. The strip is wider than the distance between the fingers on the clamping means, preferably being about equal to the distance between such fingers plus the combined width thereof. The notches 3 may be formed in pairs at certain specified intervals along the strip as shown in Fig. 1, or they may be uni- 'formly'spaced apart throughout the length of the strip as indicated in Fig. 2.

Each of the bar clamping means 2 as herein illustrated is formed from sheet metal so as to provide a seat l, depending legs 5, and upwardly disposed fingers 6. The seat 4 and depending legs 5 constitute a substantially inverted U-shaped chair, and the fingers 6 are preferably located at diagonally opposite sides thereof, although they may be located at opposite sides of one of the legs. In the construction shown in Fig. 1, the fingers 6 are bent inwardly at right angles to the plane of the legs 5, whereas in the modification shown in Fig. 3, the fingers 6 are disposed in the same'plane with the respective legs 5. This results in having the legs 5 disposed parallel to the longitudinal di-' mension of the strip 1 when a support of the type shown in Fig. 1 is used, and having the legs disposed transverse to the strip when the other type of support is used.

By forming the clamping means and spacing strip separate, a considerable less amount of material is required and much resting upon the seat 4.] The fingers 6 are then bent down as shown at the right of Fig. 1 so as to lock the clamping means to the spacing strip 1, so that a series of the supports may be nailed in position on the falsework by a few nails, or other fastening means. 1

The reinforcing bars 8 are placed between the fingers 6 so as to rest upon-the strip 1 directly above the seats 4:. The fingers are then bentoverthe bars as shown in Fig. 4, so that they are firmly gripped to the supporting device. In case it is desired to use the supporting device at places where bar intersect, the supporting meansare arranged so that the lower bar extends longitudinally along the spacing strip 1 between the fingers 6. The upper'bar therefore occupies relatively the same position as shown in Fig. 1, except that it rests upon the lower bar.

Although but one specific embodiment of this invention has been herein shown and described, it will be understood that numerous details of the construction shown may be altered or omitted without departing from the spirit of this invention as defined by the' following claims.

I claim: 1. As an article of manufacture, a structure for use as a bar supporting device for concrete reinforcements, comprising a, strip having recesses formed therein, and bar clamping means secured thereto, said barclamping means comprising a depending leg and upstanding fingers, said fingers engaging said recesses and coacting therewith for supporting said clamping means on said strip.

2. As an article of'manufacture, a structure for use as a baipsupporting device for concrete reinforcements, omprising a strip having recesses formed therein, and bar clamping means secured thereto, said clamping means each comprising a pair of de pending legs connected by transverse part, and upwardly disposed fingers located at diagonally opposite edges of said transverse part, said fingers engaging said recesses and coacting therewith for supporting said clamping means on said strip.

3. As an article of manufacture, a structure for use as a bar supporting device for concrete reinforcements, comprising bar clamping means each having a depending leg with upstanding fingers at opposite sides thereof, and a spacing and supporting strip for said clamping means, being of a width greater than the distance between said fingers and having notches formed in the edges thereof adapted to receive said fingers whereby a plurality of said clamping means are secured to said strip at points along the length thereof.

Sgned at Chicago this 15th dayof Nov. 191

HENRY H, LAMBERT. 

